The VIA Labs VL811 hub controller adds a feature called "Charging Downstream Port," CDP, as defined in the USB Battery Charging Specification. When a BCS-compatible device is attached, the device can charge over 3x faster than conventional hubs or hosts. CDP allows users to transfer data while simultaneously charging their device at the same rate as when charging from an AC adapter.

VIA Labs VL811 USB 3.0 Hub Controller
The VIA Labs VL811 enables a single downstream port of a host computer or another hub to simultaneously interface with multiple USB devices. The VIA Labs VL811 hub controller supports the higher transfer rates of the USB 3.0 specification, allowing maximum data transfer rates of up to 5Gbps, or ten times the maximum throughput available to USB 2.0 based devices, while remaining fully backwards compatible with USB 2.0 and 1.1 hosts, hubs, and devices. In addition to rapid transfers, the VIA Labs VL811 also allows for rapid charging of BCS compatible devices through the CDP feature.

yup, 5V is the USB standard basically. It is said that at low/med data usage, 1.5 Amps is the max, and it may go as high as 2.5 A for dedicated charging (data not supported). In higher data usage, 0.9A is the max

I'd love to see 2A at high data usage and something like 3~4A for dedicated charging

by: n-steryup, 5V is the USB standard basically. It is said that at low/med data usage, 1.5 Amps is the max, and it may go as high as 2.5 A for dedicated charging (data not supported). In higher data usage, 0.9A is the max

I'd love to see 2A at high data usage and something like 3~4A for dedicated charging

by: pr0n InspectorYou have USB devices that are not 5V? It's the current that matters.

Yes 5v usb 2 but isn't USB use more ?, and there is 3 other ports so hows this thing going run remotely well when all four ports are in us.

by: n-steryup, 5V is the USB standard basically. It is said that at low/med data usage, 1.5 Amps is the max, and it may go as high as 2.5 A for dedicated charging (data not supported). In higher data usage, 0.9A is the max

I'd love to see 2A at high data usage and something like 3~4A for dedicated charging